What is happening here?
Exodus 17 contains two major tests: lack of water at Rephidim and attack by Amalek. Israel quarrels with Moses and asks whether the LORD is among them. God tells Moses to strike the rock in Horeb with the rod used in Egypt, and water comes out for the people. The place is named Massah and Meribah because of Israel’s testing and strife. Amalek then attacks, and Joshua leads Israel in battle while Moses stands on the hill with the rod of God. When Moses’ hands are raised Israel prevails; Aaron and Hur support his hands until victory. The LORD declares continuing conflict with Amalek, and Moses builds an altar named Jehovah-nissi.
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